CVE Watch14 ago 2026

CVE-2026-47766

crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container root

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 14 ago 2026 · Última mod.: 14 ago 2026 · CWE-61

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle contains `rootfs/dev` as a symlink and the bundle configuration does not mount `/dev`, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named `ptmx` in the target directory was also replaced by crun's forced `ptmx -> pts/ptmx` symlink. Version 1.28 fixes the issue.

Referencias oficiales

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